CA2605693A1 - Composite of aerogel and phase change material - Google Patents
Composite of aerogel and phase change material Download PDFInfo
- Publication number
- CA2605693A1 CA2605693A1 CA002605693A CA2605693A CA2605693A1 CA 2605693 A1 CA2605693 A1 CA 2605693A1 CA 002605693 A CA002605693 A CA 002605693A CA 2605693 A CA2605693 A CA 2605693A CA 2605693 A1 CA2605693 A1 CA 2605693A1
- Authority
- CA
- Canada
- Prior art keywords
- phase change
- change material
- particles
- stream
- aerogel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Silicon Compounds (AREA)
Abstract
In one aspect, the invention provides a body comprising particles containing an insulating aerogel material intermingled with particles containing a phase change material, and a binder forming a matrix retaining the intermingled particles. In another aspect, the invention provides a method of forming an insulating body comprised by applying first and second streams onto a substrate; the first stream comprising a binder and the second stream comprising particles containing aerogel material; and simultaneously applying a phase change material onto the substrate.
Claims (22)
1. A body comprising: particles containing an insulating aerogel material intermingled with particles containing a phase change material (PCM), and a binder forming a matrix retaining said intermingled particles.
2. The body of claim 1 wherein said phase change material undergoes a solid-liquid transition.
3. The body of claim 1 wherein said PCM is encapsulated in a capsule.
4. The body of claim 3 wherein the capsule resists degradation by said binder.
5. The body of claim 1 wherein the phase change material comprises wax.
6. The body of claim 1 wherein the phase change material comprises wax encapsulated in a capsule.
7. The body of claim 1 wherein the phase change material undergoes a phase change at a temperature greater than about 100 degrees Fahrenheit.
8. The body of claim 1 wherein said aerogel material comprises a silica-based hydrophobic material.
9. The body of claim 1 wherein the particles containing aerogel have a particle size in a range of about 6 micrometers to about three millimeters.
10. The body of claim 1 wherein the particles containing phase change material have a particle size in a range of about 15 to about 40 micrometers.
11. The body of claim 1 wherein said phase change material undergoes a solid-solid transition.
12. A body of material comprising: an insulating aerogel material intermingled with a phase change material, said phase change material capable of storing thermal energy as latent heat of phase change.
13. A method of forming a thermally insulating body comprising:
a. co-depositing onto a substrate, particles containing aerogel material, particles containing phase change material, and a solution containing a binder and a carrier; and b. removing the carrier to form a solid thermally insulating body on the substrate.
a. co-depositing onto a substrate, particles containing aerogel material, particles containing phase change material, and a solution containing a binder and a carrier; and b. removing the carrier to form a solid thermally insulating body on the substrate.
14. The method of claim 13, wherein the co-depositing is conducted by discharging under pressure said aerogel-containing particles and said phase change material containing-particles onto a substrate while discharging a dispersion of said solution onto the substrate.
15. The method of claim 13, wherein the binder includes silicone.
16. The method of claim 13, wherein the carrier comprises an organic liquid.
17. The method of claim 13, wherein the removing of the carrier is conducted by drying.
18. The method of claim 13, wherein the solution is contained in a first stream and the particles are contained in a second stream.
19. The method of claim 18 wherein the first stream is interior of the second stream.
20. A method of forming an insulating body comprising: applying first and second streams onto a substrate while simultaneously applying a phase change material (PCM) onto the substrate; the first stream comprising a binder and the second stream comprising particles containing aerogel material.
21. The method of claim 20, wherein the PCM is contained in particles that are applied via a third stream.
22. The method of claim 20, wherein the PCM is contained in particles that are included in the second stream.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/190,031 | 2005-07-26 | ||
US11/190,031 US8003028B2 (en) | 2005-07-26 | 2005-07-26 | Composite of aerogel and phase change material |
PCT/US2006/029095 WO2007014284A2 (en) | 2005-07-26 | 2006-07-26 | Composite of aerogel and phase change material |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2605693A1 true CA2605693A1 (en) | 2007-02-01 |
CA2605693C CA2605693C (en) | 2012-10-16 |
Family
ID=37683963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2605693A Active CA2605693C (en) | 2005-07-26 | 2006-07-26 | Composite of aerogel and phase change material |
Country Status (7)
Country | Link |
---|---|
US (1) | US8003028B2 (en) |
EP (2) | EP1907333B1 (en) |
JP (1) | JP5114402B2 (en) |
CN (2) | CN104628317B (en) |
AU (1) | AU2006272545B2 (en) |
CA (1) | CA2605693C (en) |
WO (1) | WO2007014284A2 (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5227084B2 (en) * | 2008-05-27 | 2013-07-03 | 愛三工業株式会社 | Granulated heat storage material and manufacturing method thereof |
US20120094036A1 (en) * | 2009-06-08 | 2012-04-19 | Ocellus, Inc. | Coating Composition for Thermal Protection on Substrates, Processes for Manufacturing, and Methods of Applying Same |
WO2011105787A2 (en) * | 2010-02-23 | 2011-09-01 | Cho Young-Soo | Multiple aerogel filling material, method for manufacturing same, and product thereof |
KR101263359B1 (en) * | 2010-03-15 | 2013-05-21 | 조연수 | Multiple compartments filled material |
GB201110569D0 (en) | 2011-06-22 | 2011-08-03 | Wellstream Int Ltd | Method and apparatus for maintaining a minimum temperature in a fluid |
JP2015504602A (en) | 2011-11-15 | 2015-02-12 | ヘンケル アイピー アンド ホールディング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Electronic devices assembled using thermal insulation layers |
EP2780775A4 (en) | 2011-11-15 | 2015-08-26 | Henkel IP & Holding GmbH | Electronic devices assembled with thermally insulating layers |
EP2850657A4 (en) * | 2012-05-16 | 2015-12-16 | Henkel IP & Holding GmbH | Thermally insulative composition and electronic devices assembled therewith |
US9223363B2 (en) * | 2013-03-16 | 2015-12-29 | Henkel IP & Holding GmbH | Electronic devices assembled with heat absorbing and/or thermally insulating composition |
KR101492441B1 (en) * | 2013-08-07 | 2015-02-12 | 알이엠텍 주식회사 | Composite Comprising Phase Change Material and Aerogel and Preparing Method thereof |
TWI657132B (en) * | 2013-12-19 | 2019-04-21 | 德商漢高智慧財產控股公司 | Compositions having a matrix and encapsulated phase change materials dispersed therein, and electronic devices assembled therewith |
KR20160012703A (en) * | 2014-07-25 | 2016-02-03 | 삼성전자주식회사 | An electronic device including a heating element |
KR102315902B1 (en) | 2014-11-24 | 2021-10-22 | 사빅 글로벌 테크놀러지스 비.브이. | Enclosure with a condensation-resistant interior surface |
CN104506686B (en) * | 2015-01-09 | 2018-01-09 | 李宁 | A kind of phone housing of high efficiency and heat radiation |
CN107408545B (en) * | 2015-03-27 | 2021-07-06 | 英特尔公司 | Energy storage materials for thermal management and associated techniques and configurations |
PL413932A1 (en) * | 2015-09-11 | 2017-03-13 | Politechnika Rzeszowska im. Ignacego Łukasiewicza | Method for producing composite with the structure of sandwich panel on the basis of airgel mat and the modified polyurethane resin and/or epoxy resin |
CN105195068A (en) * | 2015-09-18 | 2015-12-30 | 南京逸柔蒂雯新材料科技有限公司 | Preparation method of modified aerosil-based composite phase-change material |
US11416046B2 (en) * | 2015-11-05 | 2022-08-16 | Henkel Ag & Co. Kgaa | Compositions having a matrix and encapsulated phase change materials dispersed therein, and electronic devices assembled therewith |
CN105733516B (en) * | 2016-01-25 | 2018-10-12 | 浙江大学 | A kind of composite phase-change film and preparation method thereof based on graphene |
CN106045554A (en) * | 2016-05-30 | 2016-10-26 | 南京工业大学 | Phase-change material doped SiO 2 aerogel composite heat-insulating material and preparation method thereof |
US11130895B2 (en) | 2016-09-20 | 2021-09-28 | Aspen Aerogels, Inc. | Aerogel composites having thermal storage capacity |
CN106521974B (en) * | 2016-09-21 | 2019-01-01 | 台州市莱恩克智能科技有限公司 | A kind of outdoor fabric of temperature control heat insulation and heat control intelligence based on microcapsules and aeroge |
CN108179006A (en) * | 2017-12-20 | 2018-06-19 | 上海叹止新材料科技有限公司 | A kind of phase-change accumulation energy heat-barrier material and preparation method and application |
ES2907041T3 (en) | 2018-01-23 | 2022-04-21 | Dow Silicones Corp | Binding composition and use thereof |
US11067343B2 (en) | 2018-10-25 | 2021-07-20 | Toyota Motor Engineering & Manufacturing North America, Inc. | Thermal compensation layers with core-shell phase change particles and power electronics assemblies incorporating the same |
EP3719547B1 (en) * | 2018-11-12 | 2022-08-24 | Lg Chem, Ltd. | Colour conversion film, and back light unit and display device comprising same |
CN110699044B (en) * | 2019-10-08 | 2021-04-27 | 东南大学 | Polypyrrole-based composite shaping phase-change material and preparation method thereof |
CN110707392B (en) * | 2019-10-17 | 2021-10-19 | 南京信息工程大学 | Preparation method of composite phase change coating beneficial to heat dissipation of lithium ion battery |
TWI737369B (en) * | 2020-06-30 | 2021-08-21 | 世大化成股份有限公司 | Breathable carrier with built-in temperature regulating unit and its manufacturing process |
US11365779B2 (en) * | 2020-10-22 | 2022-06-21 | Tsinghua University | Magnetic liquid damping shock absorber |
CN112521913B (en) * | 2020-12-04 | 2022-09-23 | 北京林业大学 | SiO (silicon dioxide) 2 Preparation method of aerogel-based photo-thermal functional composite phase-change energy storage material |
CN114670500B (en) * | 2022-04-21 | 2023-04-11 | 西安交通大学 | Orderly-accumulation phase-change thermal protection layer |
CN115058058B (en) * | 2022-07-13 | 2023-10-27 | 南京林业大学 | Preparation method of liquid metal-based photo-thermal phase-change energy storage aerogel |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3152034A (en) | 1960-02-29 | 1964-10-06 | Johns Manville | Reinforced thermal insulation having facing sheets secured to the reinforcement |
US3285803A (en) | 1962-10-03 | 1966-11-15 | Johns Manville | Composite laminates and molded articles and method of making same |
DE2928695C2 (en) * | 1979-07-16 | 1984-05-30 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Thermal insulation body and process for its manufacture |
EP0027264B1 (en) * | 1979-10-13 | 1983-04-13 | Grünzweig + Hartmann und Glasfaser AG | Heat insulating body and process for its production |
US5106520A (en) * | 1985-11-22 | 1992-04-21 | The University Of Dayton | Dry powder mixes comprising phase change materials |
FR2610982B1 (en) * | 1987-02-18 | 1990-08-24 | Armines | DEVICE FOR PROTECTING A BAY FORMED IN A BUILDING WALL |
US6004662A (en) | 1992-07-14 | 1999-12-21 | Buckley; Theresa M. | Flexible composite material with phase change thermal storage |
US6319599B1 (en) | 1992-07-14 | 2001-11-20 | Theresa M. Buckley | Phase change thermal control materials, method and apparatus |
JPH10509941A (en) | 1994-11-23 | 1998-09-29 | ヘキスト・アクチェンゲゼルシャフト | Composite containing airgel, its preparation and its use |
CN1077556C (en) * | 1995-09-11 | 2002-01-09 | 卡伯特公司 | Aerogel and adhesive-containing composite, process for its production and its use |
KR20000068188A (en) * | 1996-08-18 | 2000-11-25 | 헬무트 칼 | Conductive sealing material and profiled sealing member |
US5877100A (en) | 1996-09-27 | 1999-03-02 | Cabot Corporation | Compositions and insulation bodies having low thermal conductivity |
DE19648798C2 (en) * | 1996-11-26 | 1998-11-19 | Hoechst Ag | Process for the production of organically modified aerogels by surface modification of the aqueous gel (without prior solvent exchange) and subsequent drying |
US6077597A (en) * | 1997-11-14 | 2000-06-20 | Outlast Technologies, Inc. | Interactive thermal insulating system having a layer treated with a coating of energy absorbing phase change material adjacent a layer of fibers containing energy absorbing phase change material |
US6099894A (en) * | 1998-07-27 | 2000-08-08 | Frisby Technologies, Inc. | Gel-coated microcapsules |
WO2000061360A1 (en) * | 1999-04-14 | 2000-10-19 | Lendell Manufacturing Inc. | Thermal managing foam insulation |
JP2001082682A (en) * | 1999-09-10 | 2001-03-30 | Matsushita Refrig Co Ltd | Heat insulating material and heat insulating structure |
US6478864B1 (en) * | 1999-09-28 | 2002-11-12 | Cabot Corporation | Surface coating composition |
DE20101177U1 (en) | 2001-01-23 | 2001-04-12 | RATIONAL AG, 86899 Landsberg | Cooking appliance with inner box insulation layer |
US20030041981A1 (en) | 2001-09-05 | 2003-03-06 | Cramer Benedict F. | Aerogel-insulated overhead door |
JP2003155927A (en) * | 2001-11-19 | 2003-05-30 | Toyota Motor Corp | Catalyst vessel |
JP2003204886A (en) * | 2002-01-17 | 2003-07-22 | Matsushita Electric Ind Co Ltd | Electric water boiler |
JP2003212535A (en) * | 2002-01-22 | 2003-07-30 | Matsushita Electric Ind Co Ltd | Manufacturing method for porous gel and insulating material obtained by using the porous gel |
JP4369239B2 (en) * | 2002-01-29 | 2009-11-18 | キャボット コーポレイション | Heat resistant airgel insulating composite material and method for producing the same, airgel binder composition and method for producing the same |
AU2003241488B2 (en) * | 2002-05-15 | 2008-01-24 | Cabot Corporation | Aerogel and hollow particle binder composition, insulation composite, and method for preparing the same |
US20050025952A1 (en) * | 2002-05-15 | 2005-02-03 | Cabot Corporation | Heat resistant insulation composite, and method for preparing the same |
US6770584B2 (en) | 2002-08-16 | 2004-08-03 | The Boeing Company | Hybrid aerogel rigid ceramic fiber insulation and method of producing same |
GB0223471D0 (en) | 2002-10-10 | 2002-11-13 | Kalantar Ali | Heat insulation coatings used in the prevention of corrosion under insulation |
BRPI0410083B1 (en) | 2003-05-06 | 2017-12-05 | Aspen Aerogels, Inc. | TUBE-IN-TUBE TYPE APPARATUS FOR THERMAL ISOLATION OF A FLOW LINE |
DE602004028865D1 (en) * | 2003-11-12 | 2010-10-07 | Burchill Jr | COMPOSITION FOR HEAT INSULATION LAYER |
WO2006074463A2 (en) | 2005-01-10 | 2006-07-13 | Aspen Aerogels, Inc. | Flexible, compression resistant and highly insulating systems |
-
2005
- 2005-07-26 US US11/190,031 patent/US8003028B2/en active Active
-
2006
- 2006-07-26 JP JP2008524124A patent/JP5114402B2/en active Active
- 2006-07-26 AU AU2006272545A patent/AU2006272545B2/en active Active
- 2006-07-26 CA CA2605693A patent/CA2605693C/en active Active
- 2006-07-26 EP EP06813230.7A patent/EP1907333B1/en active Active
- 2006-07-26 CN CN201410799914.9A patent/CN104628317B/en active Active
- 2006-07-26 WO PCT/US2006/029095 patent/WO2007014284A2/en active Application Filing
- 2006-07-26 CN CNA2006800222072A patent/CN101203467A/en active Pending
- 2006-07-26 EP EP18159990.3A patent/EP3351516A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP5114402B2 (en) | 2013-01-09 |
CN101203467A (en) | 2008-06-18 |
US8003028B2 (en) | 2011-08-23 |
EP3351516A1 (en) | 2018-07-25 |
AU2006272545B2 (en) | 2011-04-14 |
AU2006272545A1 (en) | 2007-02-01 |
US20070290392A1 (en) | 2007-12-20 |
JP2009502717A (en) | 2009-01-29 |
WO2007014284A3 (en) | 2007-05-10 |
CA2605693C (en) | 2012-10-16 |
CN104628317B (en) | 2017-04-12 |
EP1907333A2 (en) | 2008-04-09 |
WO2007014284A2 (en) | 2007-02-01 |
EP1907333B1 (en) | 2018-03-07 |
CN104628317A (en) | 2015-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2605693A1 (en) | Composite of aerogel and phase change material | |
Nomura et al. | Impregnation of porous material with phase change material for thermal energy storage | |
EP3800412B1 (en) | Processes for making a super-insulating core for a vacuum insulating structure | |
NZ596403A (en) | Microcapsules with improved shells with wax in the outer shell | |
CN104223359A (en) | Novel cigarette heater provided with aerogel heat-insulating layer | |
MX2010004884A (en) | Powder cosmetic composition. | |
CN107337436B (en) | Phase-change heat storage material and preparation method thereof | |
Huang et al. | Effect of graphene oxide on phase change materials based on disodium hydrogen phosphate dodecahydrate for thermal storage | |
KR20060092577A (en) | An adhesive sheet containing phase change materials | |
JP2004075711A (en) | Latent heat storage material and method for producing the same | |
Miloudi et al. | Encapsulation of phase change materials with alginate modified by nanostructured sodium carbonate and silicate | |
CN104245859A (en) | Marking foundation composition and marking foundation using same | |
CN202277837U (en) | Beaker with temperature regulation function | |
WO2008146711A1 (en) | Complex, method for production of the same, and composition comprising the same | |
WO2008036924A3 (en) | Apparatuses and methods for adjusting body temperatures | |
CN202282206U (en) | NTC (Negative Temperature Coefficient) thermistor | |
TW200633853A (en) | Process for producing a layered article | |
WO2009027764A8 (en) | Method of production of solid and porous films from particulate materials by high heat flux source | |
JP2002053850A5 (en) | ||
Kumar et al. | A mini review on paraffin‐graphene and related hybrid phase change materials for building energy applications | |
CN103965496B (en) | A kind of polyester film with excessive temperature defencive function | |
CN105084791A (en) | Device and method for producing semi-hydrated gypsum nanometer material for 3D printing | |
KR20030045508A (en) | a non-woven fabric including phase change materials and the manufacturing method thereof | |
Pawar et al. | Microencapsulation of Paraffin Wax in Melamine-Formaldehyde for use in Thermal Management Study | |
CN102732070A (en) | Construction of nano-carbon heat-conducting layer of electronic component |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |